when i wanted to create a macro in my database, Add new action combo box is empty and does not show any action for selecting, i do not know what is problem? i can copy-paste in new action combo box but it is empty for selecting and adding new action in my database. for checking i made a new empty database and create macro in that , it shows list of actions, but in my database there is no list of actions in combo box.

I've used Access, all versions, since Access first came out and have learned that there's a numbers of reasons to use Macros within Access. VBA coding is very simple, easy to learn, and very powerful. Complex macros are very difficult to debug and understand after they've been coded and debugged, especially by someone else. I would recommend that you use macros very sparingly.

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Get the job done right, rather than do the right job.
Do it fast or do it right. Teach a man a fish . . .
If it ain't broke, don't fix it.
Note that I don't open posted databases, period.